M/V Attender

Attender is a 23m DNV Classed state of the art vessel built in Norway, purpose built and designed for the offshore wind industry.

Featuring a large passenger area with suspension seats with a good forward view. There is also a galley with a well-dimensioned sofa. These vessels are also capable of carrying up to 10 tons of cargo on the well dimensioned fore deck and still make a comfortable voyage out to the field. With two 8V MTU main engines and Controllable Pitch Propulsion, the A-class is a reliable and robust vessel series.

Vessel specification

Built 2012, Hull 87 Grovfjord Mek Verksted AS, Norway

Class notification

  • DNV +1A1 HSLC R1 Windfarm Service Vessel 1,
  • DMA (Danish Maritime Administration) cargo ship notice B


  • Trading area: World wide
  • Call sign: OWKH2
  • Complement total: 12 pax + crew
  • Range: 650 Nm
  • Gross tonnage: 131,5 t
  • Hull: Aluminium
  • Displacement (light ship): 58 t
  • Length o. a.: 22,40 m
  • Breadth: 7,6 m
  • Operational draught: 1,9 m
  • Bunker capacity, diesel oil: 8400 liters
  • Fresh water capacity: 2000 liters
  • Total forward deck capacity: 63 m2
  • Slop tanks: 660 liters
  • Forward deck dimensions: 8,5 m X 7,5 m

Cargo handling

  • Max cargo capacity on deck: 15 t
  • Deck crane: One
  • Maker: Palfinger
  • Model: PK12000M
  • Max lifting capacity: 6000 kg
  • Max lifting capacity @ max outreach: 380kg@16,4m
  • Max winch capacity: 2000 kg

Main and auxilary machinery

  • Main engines: 2 x MTU 8V2000M72
  • Power: 2 x 720/980 kW/HP
  • Propulsion type: Controllable pitch propellers (CPP)
  • Propulsion equipment: Servo gear HD220HR/Servogear eco flow
  • Auxiliary engine: 2 x Perkins/Stamford
  • Output: 2 x 27,7 kVA 230V/400V
  • Bowthruster: Sleipner 2x37kW

Navigation and communication equipment

  • Radar: 2 x Furuno X band radar FR-2117BB
  • El. chart system: Furuno ECDIS fully classified Telchart
  • AIS: Furuno class A FA-150
  • GMDSS: A2
  • Heading system: Furuno Satellite Compass SC-50
  • GPS/DGPS: Furuno GP-150
  • Autopilot: Simrad AP-50
  • Depth sounder: Furuno FCV-620
  • Crew finder: Taiyo Musen TDL1550 VHF DF Reciever
  • Navtex: Furuno NX-700B